Duplex lighting system.



1. R. PAGIN.

DUPLEX LIGHTING SYSTEM.

APPLICATION FILED FEB. 3.1911.

Patented 001.12, 1915.

8 v mwnff9 INVENTOR.

A TTORNEY.

UNITED STATES PATENT orsion.

JAMES R. PAGIN, or VALPARAISO, INDIANA.

DUPLEX LIGHTING SYSTEM.

Specification of Letters Patent.

Patented Oct. 12, 1915.

Application filed February 3, 1911. v Serial No. 606,416.

To all whom it may concern Be it known that I, JAMES R. PAGIN, citizen of the United States, residing at Valparaiso, in the county of Porter and State of The purpose of my invention is to provide a flexibility in relation to the use of head lights on automobiles that I do not believe has hitherto been attained.

In ordinary practice, with gas lighting service there is the constant annoyance of being obliged to dismount and pass forward to light or relight the acetylene gas burner.

This may occur on good roads, etc.,- but it has been found in the experience of automobilists that all the attending circumstances are not so fortuitous at all times and in fact the maj ority'of emergencies are most frequently attended by the worst conditions of rain, slush, mud, side ditches, pools of water, etc., that have to be surmounted before the gas can be ignited. This is not al- Ways an easy thing to do in a heavy downpour of rain or in a driving wind. Various proposals have been made heretofore looking toward a solution of this problem, but to my knowledge there have been submitted to the practical public no adequate solutions. It has been proposed to use a kerosene lamp as a pilot by which the gas burner could be ignited. This is a makeshift for it is not an infrequent occurrence that the gas supply gives out when least expected and the oil light serving for pilot purposes only does not furnish enough light to safely proceed with the car. It has also been proposed to use an incandescent lamp supported on the gas burner pipe. This plan can not do anything for the convenience of the driveras in the event of the gas system failing it is just asdifficult to'get out and shift around the electric lamp attachments as though it were only necessary to relight the gas burners. Combined electric and oil lamps have been proposed in connection with trolley car service, the oil being used a front elevation of Fig. 3.

as an emergency lamp in case the current is for any reason cut off. Such a system is also a makeshift, as it would compel the constant operation of the oil lamp whose intrinsic brilliancy is quite low.

-With my improved system I am enabled to furnish illumination from two distinctly separate sources, independently of each other or from both sources simultaneously if desired, without any interferences whatever. One of the practical reasons for the superiority of my system lies in the fact that I do not place all of my lighting eggs in one basket. My separate sources of illumination are not interdependent for their operation but they are handled as a single unit by reason of the fact that they are inclosed in the same casing. \Vith these ends in view, I show such instances of adaptation in the accompanying drawing that will disclose the novel features with out limiting myself to the specific details employed to accomplish the desired purposes.

Figure 1. is a vertical section of a duplex lighting unit in which the separate sources of illumination are placed above each other in the same casing. Fig. 2. is a front elevation of- Fig. 1. Fig. 3. is a horizontal section of the separate sources when placed side by side in the same housing. Fig. 4. is Fig. 5. is a side elevation of the adjustable supports for the electric lamps. Fig. 6. shows the top plan view of the unas sembled parts of Fig. 5. Fig. 7. is a diagrammatic view of the gas reflector showing a portion of the bottom cut off so as to make the structure more compact.

An acetylene burner, 1, is shown attached to a leading-in-pipe, 8, that may be secured to the casing. 5, in any suitable manner. The

light is projected forward by the reflector,

3, and the whole is closed by means of a door. 9, having a glass front, 10. This door is held closed by a screw threaded bolt, 26. of the usual type. that is pivoted at, 27, to the door, 9. It swings on its pivot, 27, in a horitical position when they are off their forked holders, 22. These holders pass into ears, 23, formed on the outside of the casing, 5.

I The holders have a projection, 24, by which they are held on the chassis of the automobile by dropping the extension, 24, into a recess provided therefor. This or any alternative form of support or attachment maybe used,

' has the bottom extension, 17.

as'desired. The gas supply is maintained through a tube, 14, that is attached to the nipple end of the tube, 8. The electric lamp, 2, is held in the parabolic reflector, 4, and it in turn isrsupportedby the. socket, 16, which may have a pivotal portion on which radial serrations are formed to cooperate with a similar surface on the companion portion, 1.7. These are held together by a bolt and, thumb nut, 19. The portion, 17,

This relation of parts admits of vertical adjustment without changing the planes of the axial arrangement of the two sets of lamps and also makes it possible to change the axial arrangement or parallelism, of the two sources of illumination in a horizontal direction. The parts, 16, and, 17, admit of making such changes in a vertical direction. These features enable one to adapt the lamp to whatever conditions may arise as to Variability in height of support that may be prevalent on different cars, in case the lamps are purchased independently by the owner of a car and are not supplied by the makers to fit standard-specifications as to the point of support. This feature is of more relative importancewhen the lamps are placed above each other, because the lamps can be so adjusted with respect to each other that the beams of illumination projected by the re- .flectors, 3, and, 4, are caused to strike the same spot of the roadway, thus not confusing the driver as to road conditions. Current is supplied to the lamp, 2, by meansof the leading-in-cord, 15, that passes through an insulating bushing, 21, and thence to the socket, 16. Q

The-reflector, 4,may be made in any form desired and it may even be attached firmly to its inclosing casing, if in the course of manufacture it is found that sufficiently flexible conditions admit of making the proper allowance for converging-beams of light from the two sources, in which case the adjustable supports shown in Figs. 5 and (i would not be required for such stocklampsr When the sources of illumination are placed above each other, the bottom por tion of the reflector, 3, may be cut OH to a surprising degree without interfering with the efficiency of the illumination factor. In

such an event the casing of the electric lamp.

2, and reflector, 4, may be brought nearer to the center of reflector, 3, thereby reducing .the over-all dimension ,of the duplex lamp.

In practically carrying out my invention it is found desirable. to have the two sources retained and they can be used as a single unit in the ordinarycourse of being handled. It is important that the two axial centers of the sources of illumination do not coincid'e so as to not bring one in front of, the other. They may be placed, asheretofore stated, above each other and side by side, or

they may be disposed in any combination of these positions.

Another important feature of my invention relates to the use of different Sources of illumination when placed adjacent each other as independentunits, having separate reflectors and individual light transmitting fronts such as fixed lenses, plain glass or swinging doors as shown, in order to protect the illuminators contained therein whether placed in separate housings or not. In practice thesubsidiary source of light is made smaller than the main source and as stated they may be placed in any suitable relation to each other, the smaller unit above or below the larger as desired though of course two fronts of the same size might be similarly placed.

It is of course obvious that my invention is not limited to automobile headlights, for it may be equally serviceable for trolley cars, motor boats, automobile side and tail lights, etc., neither is-it material whether the current is supplied by a magneto, storagebattery or other source, or combinations of these.

What I claim is 1. In duplex lighting systems, a suitable casing, a plurality of unitesources of illumination, separate reflectors held in a fixedrelation to each unit, means for holding said units adjacent to each other on a common support independently of said casing, means adapted to retain said units in differential adjustment with respect to each other, and a housing common to both units.

independent pairs and independent units, in converging axial alinement with respect to each other.

4. A duplex lighting system, a reflector and an illuminator considered as a complete unlt, another reflector and a dlsslmllar lllulnlnator composlng a separate unlt, a

common support for both units, a suitable single casing for housing the same and means for holding said units on different planes with respect to their axes.

5. A duplex lighting system comprising dissimilar sources of illumination, and separate reflectors therefor, one illuminator and a reflector constituting a pair or group, separate fastenings for each group, and a support comprising a single casing in common for two groups, whereby they may be handled as a single unit. 4

6. A duplex lighting system, comprising a suitable casing, separate compartments therein, dissimilar sources of illumination in each compartment, separate reflectors for each illuminator, and means whereby the illuminator and reflector of one compartment may be adjusted'and held independently of the illuminating system of the other compartment.

7. In duplex lighting systems the combination of two separate sources of illumination, a suitable separate reflector to each source, separate holders for each and a common support for bothholders with a single housing adapted to retain said holders adjacent to each other.

9. In duplex lighting systems, the combination of two dissimilar sources of illumination, two sets of reflectors, a support for an illuminator and a reflector, and a separate support for a dissimilar illuminator and another reflector, with a common holder for both illuminators, and a single housing adapted to contain the same.

10. A plurality of illuminators, means for supporting them adjacent each other, means for separately controlling their supply, inclosures therefor of different sizes, separate reflectors, suitable openings to each, and iiidividu'al fronts to protect the illuminators. the same being adapted to transmit luminous rays. I

In testimony whereof I affix my signature in presence of two witnesses.

JAMES R. PAGIX.

Witnesses G. H. STONER, F. R. IVEIXN. 

